Dietrich Bonhoeffer was criticized by Karl Barth and other members of the Confessing Church when he went to London. They thought he should stay in Germany and fight National Socialism. From England, Bonhoeffer was offered a position studying non-violent resistance in Ghandi's asham. He went back to Germany to preach in the underground church instead. In 1939 he went to New York but once again returned to Germany. He knew what was in store for him. He was on the Gestapo's hit list
Richard Wurmbrandt headed the underground church in Romania. He didn't have to do that. There have been thousands we know of and many more Christians who simply disappeared preaching God's word in Nazi Germany and under communist regimes.
During the American Revolution, Princeton and other colleges were seminaries and hot beds of sedition. The revolution was preached from the pulpit. All these Christians were committing treason and subjected to being hanged by the neck. Then there were the abolitionists...lots of them went into the fire too.. This is what Christians do. I'm surprised at the criticism on this forum
The people you mentioned didn't just walk across the border and announce, "I am here. Arrest Me." That is just stupid.